Ag/MIT/UmGB-2106-05/13 rev 1.0
Manual for use and maintenance
EM/EMS/EMT - ED/EDS
Air extraction/circulation fan
Models: EM/EMS36 - EM/EMS30 - EMT30
ED/EDS24
EM/EMS
EMT
ED/EDS
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© Munters AB, 2013 3
Index
• English 3
1. Safety aspects 3
2. Operating conditions 4
3. Installation 5
4. Commissioning 6
5. Warranty 7
• Italian 8
1. Safety aspects
Failure to respect safety or behavioural rules
can produce hazardous situations for users as
well as damage to the machine and the place
where it is installed. The fan must only be used
if it is in perfect operating condition, by personnel who
are perfectly aware of the safety measures and possible
hazards, and in strict compliance with the instructions
given in this manual.
1.1 PERSONNEL REQUIREMENTS
Equipment may only be used by personnel who know
and apply the specific requirements given in the user
and maintenance manual and the more general
instructions contained in various regulations for accident
prevention and applicable legislation regarding safety
in the workplace. Knowledge and understanding of the
manual and of the attached documents constitute an
indispensable tool for reducing hazards and promoting
the safety and health of workers.
Personnel training
All operators engaged in the use of the fan must have
received adequate information from the employer
relating to:
• risks to health and safety at work connected with the
• use of the machine;
• first aid procedures, fire precautions and evacuation
of workplaces;
• devices provided for the safety of operators, and
residual risks generated by the machine.
In particular, the employer has the following duties:
• when assigning tasks to operators, to take into
account their capabilities in the interests of
safeguarding their health and safety;
• to provide adequate means of protection;
• to require compliance by individual operators with
the company rules and provisions regarding safety
and the use of the collective and individual protective
measures at their disposal;
• to ensure that normal and special maintenance
operations, or in any event operations necessary for
machine safety, are regularly carried out.
All operators must take care of their own safety and
health as well as that of other people in the workplace
who may be affected by their actions or omissions, in
accordance with their personal skills, and the instructions
and means provided to them by the employer.
Unauthorized tampering/replacement of one
or more parts of the machine, or the use of
accessories, tools or materials other than those
recommended by the manufacturer, are prohibited and
release the manufacturer from all liability.
Operators must be trained to deal with the
occurrence of possible faults, malfunctions or
dangerous conditions to themselves or others,
and in such an event must:
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This manual is intended only for products
sold and/or installed in countries outside
European Community.
© Munters AB, 20134
• stop the fan immediately by operating the emergency
stop device (mushroom-shaped push-button/main
switch mounted on the electrical panel);
• not carry out operations which are beyond their
duties and/or technical knowledge.
1.2 GENERAL SAFETY INSTRUCTIONS
•Safety devices must not be removed or
rendered ineffective;
•the fan must not be started with guards
removed;
• any adjustment or maintenance operation must
be performed with the electrical isolating device
activated and locked in position with a padlock;
• any operation is prohibited which may cause arcing
or sparks or other situations which could start a fire;
• in the event of alarm signals resulting in the
intervention of safety devices, the operator must
ask for immediate action by qualified technicians
responsible for maintenance;
• user must ensure that the environmental and
electricity supply conditions in which the fan
operates are always within the limits specified in this
user manual;
• do not for any reason modify parts of the fan in
order to fit additional devices.
1.3 SAFETY DEVICES
In the process of designing and building the fan,
the manufacturer adopted the necessary technical
solutions to ensure compliance with fundamental safety
requirements: the object of the risk reduction process
was to ensure that the operator can use the fan in safety.
Fixed guards
The fixed guards are solidly fixed to the structure of
the machine and cannot easily be eluded: the guards
are fixed with systems which require the use of tools for
dismantling.
Do not start the fan with fixed guards removed:
the guards can only be removed with special
tools, by specialized and trained personnel
and with the system stationary (emergency system
activated and electricity and hydraulic fluid isolated).
At the end of maintenance operations, the guards which
were removed must be replaced correctly.
1. Position of guard: intake side of fan
Type of guard: guard of fixed type made of metal
mesh
2. Position of guard: outlet side of fan
Type of guard: guard of fixed type made of metal
mesh
Emergency stop function
The machine must be equipped at the installation stage
with an electrical panel, on which must be installed
an actuator for the emergency stop function, which
when operated brings dangerous movements to a halt
by isolation of the power supply: the button must be
mushroom-shaped and coloured red, provided with
mechanical restraint and released by turning.
1.4 RESIDUAL RISKS
Electrical hazards
System area: panels, covers and electrical apparatus.
Description: the safety signs must be fixed in an extremely
visible position on the door of the electrical panel and on
covers containing electrical apparatus, to highlight the
risks to which an operator could be exposed in the event
of opening the electrical panel (danger resulting from
the presence of live parts), the level of voltage present,
the prohibition of tampering by unauthorized personnel
and the prohibition on the use of liquids on electrical
apparatus in the event of fire.
The user and the employer must comply with
current national law in terms of protection
against daily personal exposure of operators
to noise, by providing the use of personal protective
equipment (earmuffs, earplugs, etc.) if necessary,
depending on the overall level of sound pressure in
the installation area, and the daily personal exposure
of the employees. In areas where the overall sound
level reaches excessive values, personal protective
equipment must be used.
2. Operating conditions
2.1 INTENDED CONDITIONS OF USE
Fans, fanjets and circulators are machines designed
for moving air to control temperature and humidity in
greenhouses or rearing sheds, by extraction or internal
recirculation, not under pressure, and can even be
installed horizontally, without altering or modifying their
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© Munters AB, 2013 5
characteristics. The fan has been designed and built to
operate in safety for the user, if used according to the
conditions intended by the manufacturer and stated in
this user and maintenance manual.
2.2 NON-PERMITTED CONDITIONS OF USE
Total or partial failure to observe the instructions given
in this manual could cause damage to the fan and/or
people.
The following uses are to be considered not permitted
and improper:
• use in the event of faults and/or tampering with the
installed safety devices;
• use by personnel not specifically trained;
• installation of the fan for extraction or circulation
under pressure;
• use contrary to existing regulations;
• incorrect installation differing from instructions given
in this manual;
• supply from an electrical network with characteristics
different from that specified in the wiring diagram;
• total or partial failure to observe instructions;
• insufficient maintenance;
• use of non-original spare parts;
• use of lubricants with characteristics different from
those specified in the technical documentation
attached to the manual;
• use by minors;
• use under the influence of drugs, alcohol, etc.
Use of the fan other than as described in the
user manual or outside the operational limits
laid down by the manufacturer is considered
IMPROPER USE. In the event of IMPROPER USE the
manufacturer declines all liability in relation to any
damage that may be caused to persons or property,
and any kind of warranty will be considered invalidated.
Use of non-original spare parts
Original spare parts ensure the reliability and safety of
the operation of the fan: in the event of maintenance/
replacement, consult the spare parts list, the list of
parts and components used and the relevant technical
documentation attached to this manual.
In the event of replacement of safety devices,
it is essential to maintain the safety and
operational characteristics of the original
device, preferring replacement with an identical
component.
Insufficient maintenance
A correct normal maintenance is one that maintains the
original integrity or restores the fan’s efficiency, while
at the same time limiting normal deterioration resulting
from use. Special maintenance work can also prolong
the usable life of the machine and/or, secondarily, can
improve its efficiency, reliability, productivity and ease of
maintenance and inspection.
Unauthorized modifications or tampering
No operation is permitted which is aimed at making
modifications to the fan and the safety devices fitted to
it; similarly, it is not possible to alter its operational and
performance characteristics.
Interference with the command and control
circuits is prohibited: such operations could
cause damage to the equipment and serious
danger to the operator.
Use in a potentially explosive atmosphere
The fan has been designed and built to operate in
environments where the presence of a potentially
explosive atmosphere is not expected, in other words it is
not intended to handle materials which release explosive
dust. Emission into the atmosphere of harmful particles or
gases must be contained within the limits established by
current regulations.
3. Installation
After fan has been delivered but before fitting and
installation, check condition of the consignment: in the
event of discrepancy or damage to the machine, the
manufacturer or carrier must be informed immediately.
Fitting and installation of the fan must be
performed by specialized personnel, in order
to prevent damage to the equipment or
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Fans present in this manual are intended to
be sold and/or installed in countries outside
European Community.
© Munters AB, 20136
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hazards to people as a result of faulty fitting.
Fitting the fan must be carried out according to the
following stages:
• positioning and anchoring the fan;
• connection to the mains electricity supply;
• operational testing and putting into operation.
3.1 CHOICE OF SITE AND CHECKING
INSTALLATION REQUIREMENTS
The user is responsible for preparing an area suitable
for installation of the equipment and complying with
the requirements laid down by national law governing
safety at places of work. Environmental conditions for
operating the equipment are as follows:
Ambient temperature
during operation
-25°C/+50°C
Ambient humidity
during operation
<90%
Tab. 1
For operation of fan installation, a manoeuvring area
must be made available that is suitable for the fan
dimensions and the chosen lifting equipment: electrical
points must be provided in the installation area for fan
connection to the mains electricity supply.
Irrespective of the place of installation, suitable
indelible warning signs are attached to the fan,
warning of danger and giving instructions to
remain at a safe distance not to place hands inside
the shutter and not to run in proximity of the fan.
The fans must be installed to carry out
extraction or an internal circulation of the air
present in the area, and must not operate
under pressure. It is also permissible to install the fan in
a horizontal position.
3.2 INSTALLING SERIES EM FANS
If the fan is fixed directly to a metal structure, M8 bolts
type 8.8 must be used, screwing them into the threaded
inserts provided for the purpose on the bodywork (two
per side).
If the fan is installed in a masonry structure, an iron outer
frame must be constructed (not supplied with the fan),
with a 60 mm L-shaped profile at least 5 mm thick, with
suitably-sized clamps. When the outer frame is properly
built-in, i.e. perfectly level and upright, insert the fan,
screwing four M8 bolts type 8.8 (not supplied with the
fan) into the threaded inserts provided on the sides of the
bodywork, two per side.
3.3 INSTALLING SERIES EMS FANS
For installing type EMS fans in metal or masonry
structures, the procedures described on the previous
page for model EM fans also apply. If installed for
recirculating air, it is sufficient to attach chains or cables
to the M8 threaded holes at the ends of the top cover.
3.4 CONNECTION TO THE ELECTRICAL SYSTEM
The fan is supplied without a command and control
circuit, but with all the internal electrical connections
already made. At the fitting stage, the installer must
set up a control panel in compliance with the local
requirements.
The electrical panel of the fan must generally be
equipped with the following devices:
• lockable isolating switch;
• magnetothermic switch (chosen to suit the power of
the motor); the need to fit a switch of differential type
depends on the configuration of the electrical system
supplying the fan;
• start/stop selector switch (with characteristics
compatible with the nominal current of the motor), or
main panel for managing the equipment, with control
devices which act on the electrical supply to the fan.
Do not supply power to the fan during
installation stage. Installer must issue
a declaration of correct installation in
accordance with applicable legislation in the country
of use.
The rating plate data of the electric motor and
the instructions given in the attached technical
documentation must be used for sizing the
supply cable.
The electrical lines must be laid in accordance with
requirements of the laws applying in the place of
installation, and in any event:
• they must be laid with cables of adequate section for
the power of the fan and the length of the line itself;
• they must make an effective earth connection;
• they must have isolating devices and automatic
protection against overload and short circuits.
© Munters AB, 2013 7
Before activating the electrical supply to the machine
by turning the isolator switch to position On, a series of
checks must be made:
• check that the voltage and frequency of the
power source correspond to those indicated in the
equipment technical data and electrical diagram;
• check that the supply cables and the conductor
providing external protection are correctly
connected;
• check that the connections in the control and power
circuits are properly tight;
• check that the intensity of the short-circuit expected
at the connection terminals is compatible with the
breaking power of the protection switch upstream of
the electrical panel;
• check that the protection devices (fuses,
magnetothermic switches) are correctly sized;
• check that the phases are connected in the correct
order: check that the fan rotates in the direction of the
arrow shown on the driven pulley.
Equipotential protection circuit
To create effective protection against the risk of
electrocution, the outer protection conductor must be
connected to terminal PE inside an electrical panel.
For correct sizing of the protection conductors, see
following requirements:
• phase conductor up to 16 mm²: section of the
protection conductor equal to the section of the
supply conductor;
• phase conductor between 16 and 35 mm²: section
of protection conductor equal to 16 mm²;
• phase conductor over 35 mm²: section of protection
conductor equal to at least half the section of the
supply conductor.
When connecting all the metal masses to
the earth system, check that there are no
insulating elements between the various
conductive masses (metal parts). The system must not
be put into operation unless the equipotentiality of the
masses and the connection to the earth system have
previously been checked.
Protection against contact voltages
The choice of device to protect the electrical system must
be made in such a way as to ensure the safe intervention
of the main automatic switches and any differential
devices linked to them. For an appropriate choice of the
type of protection for the machine’s supply line, taking
into account whether the distribution system is TT or TN,
it is advisable to consult an electrical systems designer.
3.5 TESTS AND CHECKS BEFORE STARTUP
Before startup, it is extremely important to carry out
a very careful check of the fan, in order to prevent
malfunctions and/or accidents.
In particular, perform the following operations.
Equipotential protection circuit:
• check the fan visually, verifying that there are no
particular mechanical irregularities or foreign bodies
inside the structure;
• check that the protective structures (fixed guards
made of metal mesh) are correctly positioned and
fixed;
• check that the emergency stop function actuator
operates correctly.
Checking the electrical system:
• check that the supply conductors are properly fixed
to the terminals of the isolating switch;
• check the connections of the conductors in the
equipotential circuit;
• check that the guards inside the electrical panel are
correctly positioned and fixed;
• check that the safety devices are receiving power
and are active, and check their effectiveness.
After this series of checks has been carried out, the fan is
ready for its first startup.
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Tension the belt after three days of
operation: improper tension will lead
to premature wear on the transmission
devices.
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Keep motor body clean. Dust deposit on
motor body will lead to overheating and
failure of bearings and motor itself. Do
not use water for motor cleaning. Use compressed
air only. Water spraying will cause rust inside the
bearings and lead to their failure.
© Munters AB, 20138
4. Commissioning
The fan must not be used without first
reading and understanding the user manual
and becoming completely familiar with the
controls.
4.1 CONTROL DEVICES
This chapter gives instructions on the control devices with
which the electrical control panel must be fitted, which
shall be done at the installation stage.
The electrical circuit of the fan must generally be fitted
with the devices indicated in section ‘Connection to the
electrical system’.
4.2 INSTRUCTIONS FOR MACHINE USE
Switching on and starting up
Before starting the machine:
• check that all the guards for the hazardous areas are
in their correct positions;
• check that all the electrical safety components are
in place and check their effectiveness by activating
them;
• check the presence of the electricity supply.
To start the fan, go through the following procedure:
• turn the isolator switch to position On;
• press the fan starter button.
Normal stopping
In the event of necessity the fan can be stopped by
operating the relative control device (stop), which shall
be installed on the electrical panel.
Activating this control must cause the fan blade to stop
rotating, but does not cause isolation of the power
supply: the fan can be started again by pressing the start
button.
In the event that the fan does not need to be used for an
extended period of time, the following stop procedure
must be used:
• operate the stop button;
• operate the emergency stop button;
• open the main isolator switch (position ‘0’) on the
electrical panel and attach a padlock to the actuator.
Interrupting the electricity supply, equivalent
to isolating by the operator with the main
switch, causes complete fan shutdown:
restoring the electricity supply will not cause any
movement in the machine.
Emergency stop
Operating the main emergency stop button causes the
fan to stop moving.
The function is controlled by a red mushroom type button
on a yellow background, provided with mechanical
locking and release by turning.
Resetting after stopping
1. Resetting after normal stopping
After normal stopping the operating cycle must be
reset by following the procedure described in section
‘Control devices’.
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The metal sheet used for constructing the
fan housing and shutter blades have a
minimum Z200 galvanization surface
treatment (equivalent of 14μm on each side) which
corresponds to a corrosion resistance in salty mist
of 140h. Whenever it is intended to use the fans
in ambients characterized by the presence of
particularily agressive agents (ammonia, clavolanic
acid, etc.) the user, before installing the fan at the
installation site must verify that the environmental
conditions are compatible with the intended use of
the materials that compose the fan.
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Do not operate the fan with the safety
protections removed: safety meshes can
be removed only with specific tools by
qualified technicians when the fan reaches a
complete standstill. The fixing sytems of the safety
protections are not interchangeable with other
devices. Therefore, if for maintenance reasons the
user damages or loses any component, this must
be definetely ordered from the manufacturer as
spare parts and it cannot just be replaced with
other components, even similar, not supplied
by the constructor itself. In this particular event
the manufacturer refuses all responsibility on
consequent damages caused to things and people
and considers any kind of warranty lost.
© Munters AB, 2013 9
2. Resetting after emergency stop
After an emergency stop, the operating cycle must be
reset by following the procedure described below:
• reset the actuator by which the emergency stop
command was given (by turning the relative
mushroom button);
• for an exact reset sequence, refer to the
instructions given in in section ‘Control devices’.
5. Warranty
Munters products are designed and built to provide
reliable and satisfactory performance but cannot be
guaranteed free of faults; although they are reliable
products they can develop unforeseenable defects
and the user must take this into account and arrange
adequate emergency or alarm systems if failure to
operate could cause damage to the articles for which the
Munters plant was required: if this is not done, the user is
fully responsible for the damage which they could suffer.
Munters extends this limited warranty to the first
purchaser and guarantees its products to be free from
defects originating in manufacture or materials for one
year from the date of delivery, provided that suitable
transport, storage, installation and maintenance terms
are complied with. The warranty does not apply if
the products have been repaired without express
authorisation from Munters, or repaired in such a way
that, in Munters’ judgement, their performance and
reliability have been impaired, or incorrectly installed,
or subjected to improper use. The user accepts total
responsibility for incorrect use of the products.
The warranty on products from outside suppliers fitted
to EM/EMS/EMT/ED/EDS, (for example electric
motors, belts, etc.) is limited to the conditions stated by
the supplier: all claims must be made in writing within
eight days of the discovery of the defect and within 12
months of the delivery of the defective product. Munters
has thirty days from the date of receipt in which to take
action, and has the right to examine the product at the
customer’s premises or at its own plant (carriage cost to
be borne by the customer).
Munters at its sole discretion has the option of replacing
or repairing, free of charge, products which it considers
defective, and will arrange for their despatch back to
the customer carriage paid. In the case of faulty parts
of small commercial value which are widely available
(such as bolts, etc.) for urgent despatch, where the cost
of carriage would exceed the value of the parts, Munters
may authorise the customer exclusively to purchase the
replacement parts locally; Munters will reimburse the
value of the product at its cost price.
Munters will not be liable for costs incurred in
demounting the defective part, or the time required to
travel to site and the associated travel costs. No agent,
employee or dealer is authorised to give any further
guarantees or to accept any other liability on Munters’
behalf in connection with other Munters products, except
in writing with the signature of one of the Company’s
Managers.
In the interests of improving the quality of its
products and services, Munters reserves the
right at any time and without prior notice to
alter the specifications in this manual.
The liability of the manufacturer Munters ceases in the
event of:
• dismantling the safety devices;
• use of unauthorised materials;
• inadequate maintenance;
• use of non-original spare parts and accessories.
Barring specific contractual terms, the following are
directly at the user’s expense:
• preparing installation sites;
• providing an electricity supply (including the
protective equipotential bonding (PE) conductor,
for correctly connecting the equipment to the mains
electricity supply;
• providing ancillary services appropriate to the
requirements of the plant on the basis of the
information supplied with regard to installation;
• tools and consumables required for fitting and
installation;
• lubricants necessary for commissioning and
maintenance.
It is mandatory to purchase and use only original spare
parts or those recommended by the manufacturer.
Dismantling and assembly must be performed by
qualified technicians and according to the manufacturer’s
instructions.
The use of non-original spare parts or incorrect assembly
exonerates the manufacturer from all liability.
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© Munters AB, 2013
www.munters.com
Australia Munters Pty Limited, Phone +61 2 8843 1594, Brazil Munters Brasil Industria e Comercio Ltda, Phone +55 41 3317 5050, Canada Munters Corporation
Mason, Phone +1 517 676 7070, China Munters Air Treatment Equipment (Beijing) Co. Ltd, Phone +86 10 80 41 8000, Denmark Munters A/S, Phone
+45 9862 3311, India Munters India, Phone +91 20 3052 2520, Indonesia Munters, Phone +62 818 739 235, Italy Munters Italy S.p.A., Chiusavecchia, Phone
+39 0183 52 11, Japan Munters K.K., Phone +81 3 5970 0021, Korea Munters Korea Co. Ltd., Phone +82 2 761 8701, Mexico Munters Mexico, Phone
+52 818 262 54 00, Russia Munters AB, Phone +7 812 448 5740, Singapore Munters Pte Ltd., Phone +65 744 6828, South Africa and Sub-Sahara Countries
Munters (Pty) Ltd., Phone +27 11 997 2000, Spain Munters Spain S.A., Phone +34 91 640 09 02, Sweden Munters AB, Phone +46 8 626 63 00, Thailand
Munters Co. Ltd., Phone +66 2 642 2670, Turkey Munters Form Endüstri Sistemleri A.Ş, Phone +90 262 751 3750, USA Munters Corporation Mason, Phone
+1 517 676 7070, Vietnam Munters Vietnam, Phone +84 8 3825 6838, Export & Other countries Munters Italy S.p.A., Chiusavecchia Phone +39 0183 52 11
Euroemme
®
EM/EMS/EMT/ED/EDS fans are developed and produced by Munters Italy S.p.A., Italy
Ag/MIT/UmGB-2106-05/13 rev 1.0 Euroemme
®
is a trademark of Munters AB
/
